Search a number
-
+
31112114205 = 35171913149019
BaseRepresentation
bin11100111110011011…
…010011000000011101
32222022020221011021010
4130332123103000131
51002204200123310
622143120325433
72150662415214
oct347633230035
988266834233
1031112114205
1112215a82987
126043473879
132c1a8c7a43
14171201c07b
15c215a4320
hex73e6d301d

31112114205 has 64 divisors (see below), whose sum is σ = 55906329600. Its totient is φ = 14681871360.

The previous prime is 31112114203. The next prime is 31112114227. The reversal of 31112114205 is 50241121113.

It is not a de Polignac number, because 31112114205 - 21 = 31112114203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112114203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 610186 + ... + 659204.

It is an arithmetic number, because the mean of its divisors is an integer number (873536400).

Almost surely, 231112114205 is an apocalyptic number.

It is an amenable number.

31112114205 is a deficient number, since it is larger than the sum of its proper divisors (24794215395).

31112114205 is a wasteful number, since it uses less digits than its factorization.

31112114205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49194.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 31112114205 its reverse (50241121113), we get a palindrome (81353235318).

The spelling of 31112114205 in words is "thirty-one billion, one hundred twelve million, one hundred fourteen thousand, two hundred five".

Divisors: 1 3 5 15 17 19 51 57 85 95 131 255 285 323 393 655 969 1615 1965 2227 2489 4845 6681 7467 11135 12445 33405 37335 42313 49019 126939 147057 211565 245095 634695 735285 833323 931361 2499969 2794083 4166615 4656805 6421489 12499845 13970415 15833137 19264467 32107445 47499411 79165685 96322335 109165313 122008291 237497055 327495939 366024873 545826565 610041455 1637479695 1830124365 2074140947 6222422841 10370704735 31112114205